Jenkins 访问下游作业中的参数

Question

I sent params to the downstream job like this:

build job: '../UItest/master', parameters: [
        string(name: 'parent_branch', value: String.valueOf(BRANCH_NAME)),
        string(name: 'parent_build', value: String.valueOf(BUILD_NUMBER))
      ], wait: false

Then in downstream when I try to access it like:

sh '''
    echo ${params.parent_branch}
    '''

it throws me this error: ${params.parent_branch}: bad substitution

but I can access to it like:

sh "echo ${params.parent_branch}"

and it works fine.

so what is differences between ''' and " in running shell script and using params?

Thanks

Answer 1

I got my answer, it is described here: https://groovy-lang.org/syntax.html

Triple-single-quoted '''...''' doesn't support interpolation to use variables like that. We should use Triple-double-quoted """…​""" instead